Michael shimer



UNTTEE STATES PATENT OEEICE. f

MICHAEL SHIMER, OE UNION TOWNSHIP, BEDFORD COUNTY, PENNSYLVANIA.

WINNOWER.

"Specification of 'Letters Patent'No. 10,494, dated February 7, 1.854.

To all whom t may concern.'

Be it known that I, MICHAEL SHIMER, of Union township, in the county of Bedford and State of Pennsylvania, have invented a new and useful Improvement in l/Vinnowing-Machines; and I do hereby declare vthat the following is a full, clear, and eXact description of the construction and operation of the same, reference being had to the anneXed drawings, forming part of this specication, in which- Figure 1 is a side elevation of the machine. Fig. 2 is a vertical longitudinal section taken on line m, Fig. 4. Fig. 3 is an end elevation of the machine. YFig. l is a top view of the winnower, with top of fan chamber removed. Fig. 5 is ay vertical section on line y y of Fig. 4. Fig. 6 is a cross section of the rubber G. A

' Similar letters of reference vin the several figures denote the same part of the machine.

My invention refers to machines in which the chaff and impurities are separated and drawn off by the current due to the revolution of a fan; which cleaning process is well known to be influenced materially by the form of the draft passages, and regulation of the blast.

The inventionl consists in the introduction of an adjustable side to the vertical trunk; by which the draft is rendered suliiciently strong when passing through the grain, for the separatio-n of impurities, while its gradual weakening due to the enlargement of the trunk prevents the carrying off of the cleaned grain; also, in the employment ofl a ribbed hopper and beater shaft, for loos# ening the white caps and other adhering impurities before submitting the grain to theV action of the fan blast.

In the drawings A is the vertical trunk communicating with the hopper shaped trunk B, on, and opening into which is the fan chamber C, containing the fan D. On the side of the trunk B is the hopper H with its bottom communicating by the tube F with the hopper E; on the interior vof this hopper H are the ribs a, and within it revolves the square rubber G, the lower end of which is provided with a flange r, the edge of which extends under the lower edge of the hopper H, as seen in Fig. 6, and

serves to prevent the grain from fallingV through the hopper until all of the impuri- 'by the screw CZ.

vties 'inv the grain have been thoroughly mashed or ground. Upon the top of theA machine is the inclined trough I vcovered with the screen and leading into the hopper Within the vertical trunk A, and

equal in width to its interior, is the movable side P, hung by the hinges c, and adjustable The hopper E has an inclined bottom e leading to the seive f, below which is the cockle seive e'.

The operation of my machine is as follows: The grain to be operated upon, passes by the inclined trough I to the hopper H, the screen Z) causing the large impurities to pass off by the upper plate m of the trough. After entering the hopper H the friction between the ribs a and revolving rubber G, removes the white caps and other adhering impurities. From the hopper H the grain proceeds by the tube F to the hopper E and thence to the seive f, where the current caused by the revolution of the fan D passes through the grain and carries off the chaff and lighter impurities as indicated by the` Y arrow in Fig. 2. The heavier of these impurities fall into the hopper B while the chaffl and light particles pass out through the opening p in the fan chamber. After passing through the seive f the cockle is separated by the sieve i and the grain is conveyed to the proper receptacle perfectly cleaned. I

Previous to commencing the operation, the side P must be adjusted by the screw Z to suit the cleaning to be performed; so that the full strength of the blast shall be felt at the screen f to insure the separation, while its gradual weakening prevents the grain from being carried off.

.The advantages of this machine consist in the superiority of the adjustable side over permanent trunks widening upward, as

grain capable of being thoroughly cleaned when it reaches the Correctly graduated blast of the machine.

I do not claim the adjustableV side P alone. But

What I do claim as my invention and desire to secure by Letters Patent is- 1. The movable side 'P in combination With the inclined screen F, said combination Subserving three purposes, lst, forlpreventing the grain from `passing over the edge of the screen until it has been properly presented to the blast or draft; 2nd, for partially cutting oft1 the draft as the state of the grain may require; 3rd, for expanding the draft of the blast as it ascends the trunk so as to weaken the force of the blast in such a manner that the pure grain will not be carried over into the horizontal part B of the trunk.v

2. I claim the square rubber G in combination with the circular flanch formed on its lower extremity as described for the purpose of ma'shing or grinding all impurities softer than the Wheat, and also for preventing the grain from passing out of bottom of the hopper before it has been thoroughly pulverized, as described.

In testimony whereof, I have hereunto signed my name before two subscribing Witnesses.

MICHAEL SHIMER.

IVitnesses SAMUEL I-I. TATE, WV. T. CHAPMAN. 

